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采用有机金属络合物固载法和共沉淀法制备了Au/Fe2 O3 催化剂 ,考察了该催化剂在CO氧化中的催化活性及其制备条件如焙烧温度、金的负载量、沉淀剂、活性组分前体和制备方法等因素对催化活性的影响 .结果表明 :两种方法制备的Au/Fe2 O3 (金负载量为3% )对CO氧化具有良好的催化活性 ,可分别于 - 5℃和 - 2 3℃以下将空气中 1% (体积分数 )的CO完全转化为CO2 ;共沉淀法制备的样品活性更高
The Au / Fe 2 O 3 catalyst was prepared by immobilization of organometallic complex and coprecipitation method. The catalytic activity of the catalyst in the oxidation of CO and the preparation conditions such as calcination temperature, gold loading, precipitation agent, active group The results showed that Au / Fe 2 O 3 (3% gold loading) prepared by the two methods had good catalytic activity for CO oxidation and could be separated at -5 ℃ and - Completely convert 1% (volume fraction) of CO in the air to CO2 under 2 3 ℃; samples prepared by coprecipitation method are more active